7988225

素因数分解:

$5^2\times 7^2\times {\mathrm{6521}}^1$

素因数の和:6545

約数の個数: 18

約数和(自身を含む): 11524374

約数和(自身を除く): 3536149

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 6521, 32605, 45647, 163025, 228235, 319529, 1141175, 1597645, 7988225]

約数ペア:

[(1, 7988225), (5, 1597645), (7, 1141175), (25, 319529), (35, 228235), (49, 163025), (175, 45647), (245, 32605), (1225, 6521)]